Question 1

Consider the following structure. 
-If named as an annulene, the name would be [ __ ] annulene.

Accepted Answer

16

Question 2

Which is the correct assignment of the names of the following substituted benzenes?

Accepted Answer

A)  1 = phenol; 2 = m-cresol; 3 = toluene
B)  1 = m-cresol; 2 = resorcinol; 3 = m-xylene
C)  1 = anisole; 2 = catechol; 3 = m-xylene
D)  1 = m-cresol; 2 = anisole; 3 = cumeneE) All of the above
F) B) and C)

Question 3

Answer the following questions concerning sulfathiazole below by filling ieach blank with the appropriate response. 
-The hybridization of the nitrogen atom in sulfathiazole is ______.
A. sp
B. sp2
C. sp3

Accepted Answer

Question 4

Which of the following is not true about cyclooctatetraene?

Accepted Answer

A)  The planar conformation is antiaromatic
B)  In the planar conformation there are two electrons in degenerate nonbonding pi orbitals.
C)  In the tub conformation the pi system is not conjugated
D)  The tub conformation is aromaticE) A) and C)
F) A) and D)

Question 5

Which of the following has the compounds shown in the correct order of decreasing acidity (i.e., more acidic > less acidic) ?  less acidic) ?   A) 1 > 2 > 3 B) 2 > 1 > 3 C) 3 > 2 > 1 D) 1 > 3 > 2" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  1 > 2 > 3
B)  2 > 1 > 3
C)  3 > 2 > 1
D)  1 > 3 > 2E) A) and B)
F) A) and C)

Question 6

Which orbital contains the lone pair on the nitrogen atom of pyridine?

Accepted Answer

A)  s
B)  p
C)  sp
D)  sp2E) All of the above
F) C) and D)

Question 7

Which of the following has the compounds shown in the correct order of decreasing acidity (i.e., more acidic > less acidic) ?  less acidic) ?   A) 1 > 2 > 3 B) 2 > 3 > 1 C) 3 > 2 > 1 D) 2 > 1 > 3" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  1 > 2 > 3
B)  2 > 3 > 1
C)  3 > 2 > 1
D)  2 > 1 > 3E) B) and C)
F) C) and D)

Question 8

What is the best choice of reagent to achieve the following reaction? 2SO4 B) NaOH, H2O C) K2Cr2O7, H2SO4 D) H2/Pd" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  H2SO4
B)  NaOH, H2O
C)  K2Cr2O7, H2SO4
D)  H2/PdE) A) and D)
F) All of the above

Question 9

What are the relative positions of the substituents in the following structure?

Accepted Answer

A)  anti
B)  meta
C)  ortho
D)  paraE) A) and B)
F) A) and C)

Question 10

What are the two major organic products obtained from the following reaction?

Accepted Answer

The answer of What are the two major organic products...

Question 11

Consider the cycloheptatrienyl anion. Complete the following questions by filling in the blank with the appropriate word.
-Consider the following compound.  When treated with acidic K2Cr2O7 the product would be classified as a ___________.

Accepted Answer

Question 12

Which of the following statements is not true about the structure of benzene?

Accepted Answer

A)  six atomic 2p-orbitals overlap to form six  π\piπ -molecular orbitals
B)  there are three bonding  π\piπ -molecular orbitals and three  π\piπ -antibonding molecular orbitals
C)  the ground state electronic configuration of benzene has six electrons in three  π\piπ -bonding molecular orbitals
D)  the bonds alternate in length around the ring E) None of the above
F) All of the above

Question 13

List all of the requirements of a molecule for it to be considered aromatic.

Accepted Answer

An aromatic molecule has an un...

Question 14

The following compound should be name as 1-((1S, 3R)-3-methylcyclohexyl)benzene.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following represents the energy levels of the molecular orbitals of cyclopentadienyl anion?

Accepted Answer

A)  1
B)  2
C)  3
D)  4E) B) and D)
F) B) and C) A

Question 16

Which of the following is not one of Hückel's criteria for aromaticity?

Accepted Answer

A)  The compound must be cyclic
B)  The compound must have one p-orbital on each atom of a ring
C)  The compound must be planar or nearly planar so that there is a continuous overlap of p orbitals
D)  The compound must have a closed loop of six pi electronsE) A) and B)
F) None of the above

Question 17

What is the approximate length of the carbon-carbon bonds in benzene?

Accepted Answer

A)  110 pm
B)  121 pm
C)  139 pm
D)  156 pmE) All of the above
F) A) and B)

Question 18

Provide a brief explanation of why furan (below) is aromatic. Your answer should identify the hybridization of the oxygen atom and account for which electrons are in the pi system.

Accepted Answer

The oxygen is sp² hybridized. One lone pa...

Question 19

Phenols are stronger acids than alcohols because of the resonance stabilization of alkoxide ions.

Accepted Answer

A) True 
 B)False

Question 20

What is the IUPAC name of the following compound?

Accepted Answer

3-bromo-4-...

Exam 21: Benzene and the Concept of Aromaticity

Consider the following structure. -If named as an annulene, the name would be [ __ ] annulene.

Correct Answerverified16

Which is the correct assignment of the names of the following substituted benzenes?

Correct AnswerverifiedShow Answer

Answer the following questions concerning sulfathiazole below by filling ieach blank with the appropriate response. -The hybridization of the nitrogen atom in sulfathiazole is ______. A. sp B. sp2 C. sp3

Correct AnswerverifiedShow Answer

Which of the following is not true about cyclooctatetraene?

Correct AnswerverifiedShow Answer

Which of the following has the compounds shown in the correct order of decreasing acidity (i.e., more acidic > less acidic) ?

Correct AnswerverifiedShow Answer

Which orbital contains the lone pair on the nitrogen atom of pyridine?

Correct AnswerverifiedShow Answer

Which of the following has the compounds shown in the correct order of decreasing acidity (i.e., more acidic > less acidic) ?

Correct AnswerverifiedShow Answer

What is the best choice of reagent to achieve the following reaction?

Correct AnswerverifiedShow Answer

What are the relative positions of the substituents in the following structure?

Correct AnswerverifiedShow Answer

What are the two major organic products obtained from the following reaction?

Correct Answerverified11ea7d75_f62d_223c_b9bd_3323ee7407ed_TB1813_00_TB1813_00

Consider the cycloheptatrienyl anion. Complete the following questions by filling in the blank with the appropriate word. -Consider the following compound. When treated with acidic K2Cr2O7 the product would be classified as a ___________.

Correct AnswerverifiedShow Answer

Which of the following statements is not true about the structure of benzene?

Correct AnswerverifiedShow Answer

List all of the requirements of a molecule for it to be considered aromatic.

Correct AnswerverifiedAn aromatic molecule has an un...View AnswerShow Answer

The following compound should be name as 1-((1S, 3R)-3-methylcyclohexyl)benzene.

Correct AnswerverifiedShow Answer

Which of the following represents the energy levels of the molecular orbitals of cyclopentadienyl anion?

Correct AnswerverifiedA

Which of the following is not one of Hückel's criteria for aromaticity?

Correct AnswerverifiedShow Answer

What is the approximate length of the carbon-carbon bonds in benzene?

Correct AnswerverifiedShow Answer

Provide a brief explanation of why furan (below) is aromatic. Your answer should identify the hybridization of the oxygen atom and account for which electrons are in the pi system.

Correct AnswerverifiedThe oxygen is sp2 hybridized. One lone pa...View AnswerShow Answer

Phenols are stronger acids than alcohols because of the resonance stabilization of alkoxide ions.

Correct AnswerverifiedShow Answer

What is the IUPAC name of the following compound?

Correct Answerverified3-bromo-4-...View AnswerShow Answer

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Answer the following questions concerning sulfathiazole below by filling ieach blank with the appropriate response. -The hybridization of the nitrogen atom in sulfathiazole is ______. A. sp B. sp² C. sp³

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Consider the cycloheptatrienyl anion. Complete the following questions by filling in the blank with the appropriate word. -Consider the following compound. When treated with acidic K₂Cr₂O₇ the product would be classified as a ___________.

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An aromatic molecule has an un...
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The oxygen is sp² hybridized. One lone pa...
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3-bromo-4-...
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